Quarterly report pursuant to sections 13 or 15(d)

Convertible Promissory Notes and Warrants - Additional Information (Detail)

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Convertible Promissory Notes and Warrants - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 1 Months Ended
Dec. 31, 2009
Y
Mar. 31, 2012
Dec. 21, 2009
Feb. 28, 2012
Amended Debt Instrument
Dec. 21, 2009
Convertible Notes Payable
Feb. 28, 2012
Convertible Notes Payable
Amended Debt Instrument
Dec. 31, 2009
Series A
Convertible Promissory Notes And Warrants [Line Items]              
Issue of convertible promissory notes     $ 2,400,000        
Warrants issued     935,040        
Outstanding Series A Preferred Stock Prior to Conversion             480
Exchange Warrants exercise price 5.08            
Convertible Promissory Notes, maturity date 3            
Convertible Promissory Notes, interest rate 1.00%   1.00%     10.00%  
Convertible Promissory note, number of common shares     450,281 450,281      
Convertible Promissory note, conversion price $ 5.33     $ 5.33      
Convertible Promissory Notes, value allocated     2,150,448        
Convertible Promissory Notes, face value         2,472,000    
Convertible Promissory Notes, discount     321,552        
Discount amortization charges   $ 27,225          
Convertible Promissory Notes, expiring date           Jun. 30, 2013